The Cisco High-Density Packet Voice/Fax DSP Module helps the Cisco AS5400XM and AS5350XM Voice Gateways provide high-density voice connectivity to Cisco Voice Infrastructure and Applications (VIA) solutions. Cisco AS5000XM Series Voice Gateways offer service providers and large enterprises intelligent, high-capacity voice gateways that can be used for several solutions, including voice services over broadband, wholesale voice transport, unified communications, call-center services, IP-enabled interactive voice response (IVR), toll bypass, hosted IP telephony, and prepaid calling card services.